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Electric motor with a coil arrangement for providing oscillatory linear and rotational movement

  • US 7,554,225 B2
  • Filed: 05/25/2006
  • Issued: 06/30/2009
  • Est. Priority Date: 11/27/2003
  • Status: Active Grant
First Claim
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1. An electric motor for a small-scale electrical appliance comprising:

  • at least one oscillatory motor component;

    a magnet arrangement having a first segment and a second segment, each of which includes at least one permanent magnet; and

    a coil arranged to generate a magnetic field that interacts with the first segment to generate a force for excitation of an oscillatory linear motion, and that interacts with the second segment to generate a torque for excitation of an oscillatory rotational motion in addition to the linear motion.

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